Lower minimum OTP to 27 and validate in CI#68
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The OTP 28/29 support work was source-compatible with 27, so the minimum_otp_vsn floor was raised further than needed. Set it back to 27 and add OTP 27 to the CI matrix (Python 3.12/3.13/3.14 on Linux) to actually validate builds and the Common Test suite there.
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Lowers the supported OTP floor from 28 back to 27.
The OTP 28/29 support work was source-compatible with 27 (the
try ... catchcleanups build fine there), so theminimum_otp_vsnfloor had been raised further than necessary. Nothing in the Erlang or C sources depends on an OTP 28-only API.Changes
rebar.config:minimum_otp_vsn28 -> 27.github/workflows/ci.yml: add OTP 27 Linux block (Python 3.12/3.13/3.14), mirroring the OTP 28 rows; matrix is now 27/28 on Linux + 29 on Linux/macOSREADME.md: requirements now read "Erlang/OTP 27+ (tested on OTP 27, 28, and 29)"CHANGELOG.md: Unreleased entryAuxiliary jobs (asan, free-threaded, lint, docs) stay on OTP 29 since they test orthogonal concerns, not version compatibility.
Actual OTP 27 validation happens in this PR's CI run (local dev machine only has OTP 29).